biophoton

 

  • [2] One biophoton mechanism focuses on injured cells that are under higher levels of oxidative stress, which is one source of light, and can be deemed to constitute a “distress
    signal” or background chemical process, but this mechanism is yet to be demonstrated.

  • [25] The hypothesis of cellular communication by biophotons was highly criticised for failing to explain how could cells detect photonic signals several orders of magnitude
    weaker than the natural background illumination.

  • [18] Further support is provided by studies indicating that emission can be increased by addition of reactive oxygen species.

  • [8] Detection and measurement Biophotons may be detected with photomultipliers or by means of an ultra low noise CCD camera to produce an image, using an exposure time of
    typically 15 minutes for plant materials.

  • [citation needed] The difficulty of teasing out the effects of any supposed biophotons amid the other numerous chemical interactions between cells makes it difficult to devise
    a testable hypothesis.

  • It involves the generation of reactive oxygen species (ROS), which have crucial roles in signal transduction or as toxic agents leading to cell death.

  • [16] Such reactions can lead to the formation of triplet excited species, which release photons upon returning to a lower energy level in a process analogous to phosphorescence.

  • [22] Hypothesized involvement in cellular communication[edit] In the 1920s, the Russian embryologist Alexander Gurwitsch reported “ultraweak” photon emissions from living
    tissues in the UV-range of the spectrum.

  • Biophotons (from the Greek meaning “life” and meaning “light”) are photons of light in the ultraviolet and low visible light range that are produced by a biological system.

  • The term biophoton used in this narrow sense should not be confused with the broader field of biophotonics, which studies the general interaction of light with biological
    systems.

 

Works Cited

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Photo credit: https://www.flickr.com/photos/seelensturm/5025805406/’]